How to Properly Adjust Gears on a Mountain Bike: A Beginner’s Guide
To adjust gears on a mountain bike, first shift the bike into the highest gear and loosen the cable with the tension adjuster before tightening it again using the barrel adjuster. If it shifts too far, move the derailleur so it is closer to the spokes. Test the high gear, then shift it to the lowest gear and adjust it similarly. After you’ve made your adjustments, make sure you test the bike by taking it for a ride to ensure that it shifts smoothly.